Zhou Wen followed the old lady to the inpatient ward and learned that her son was not suffering from a minor illness, but advanced liver cancer, and his days were numbered.

After waiting for the male nurse to help Guo Baichun wipe his body, the old lady sat at the head of the bed, opened the thermos box tremblingly, picked up a plastic spoon, and fed the skinny and bloodless little old man on the hospital bed.

Zhou Wen looked at it with true eyes, this little old man's name is Guo Baichun, 72 years old this year, and the old lady Zhang Jieru is 93 years old this year.

"I, don't eat. ”

"Obedient, take a bite. ”

"Hmm......" Guo Baichun ate a spoonful of soup and rice at the old lady's repeated requests, but as soon as he swallowed it, he immediately spit it out in the next second, "vomit...... cough cough cough ......"

The old lady hurriedly put down the lunch box and picked up the bedside tissue to wipe it.

Zhou Wen, who was standing on the side, also helped, and asked at the same time, "Where are his children?"

"They're all gone. ”

"Ah......h

Zhou Wen was a little embarrassed.

The old lady said with a deep smile: "My eldest grandson is a firefighter, and in order to save people, he rushed into the fire and never came out. He was only 22 years old that year, which is about the same age as you are now.

The second grandson was JC, who also died in the line of duty. ”

Zhou Wen's body stiffened, and an indescribable sourness blocked his throat, "Your grandsons are all amazing people!"

"Yes!" the old lady sighed with a smile on her face, revealing infinite sorrow.

After wiping it clean, the old lady continued to feed, although Guo Baichun couldn't eat it, he still insisted on swallowing.

Then soon vomited again.

After vomiting, Guo Baichun had intermittent pain, at first he was just "humming", but later it became heartbreaking.

Zhou Wen knows that in the advanced stage of liver cancer, most people will experience severe pain.

It is mainly caused by the rapid enlargement of the tumor, compression of the liver capsule, the traction pain, and the stimulation of the liver capsule by tumor necrosis, and some are caused by the rupture and bleeding of the cancer nodule located on the surface of the liver.

Looking at Guo Bochun's appearance, the cancer cells have completely collapsed, and analgesic drugs such as OxyContin and meperidine hydrochloride are no longer effective for him.

Although the old lady had already seen through life and death, she couldn't help but wet her eyes when she saw her son wailing on the hospital bed, but she was helpless.

The only thing she could do was to use her wrinkled palm to hold her son's hand tightly and give his mother strength.

Zhou Wen is a sensual person, and he can't see such a scene the most.

I can't help if I want to......

"That's not right!"

At this moment, a flash of inspiration suddenly flashed in Zhou Wen's mind, and he remembered the "Biological Pain Relief Formula".

Although this drug cannot treat liver cancer, it should relieve Guo Baichun's pain and allow him to enjoy a moment of tranquility in the last moments of his life, instead of dying in endless pain.

The biological painkiller has a simple production method, and the refining of plant raw materials is consistent with the principle of animal genomic DNA extraction, but there are slight differences in the method, and the experimental equipment is ready-made.

Now the only question is, do you want to help?

At this moment, a familiar prompt suddenly sounded in my ears, [Ding! The mission conditions have been reached, do you want to submit the task immediately?]

Zhou Wenleng paused, and when he reacted, he was immediately ecstatic.

I looked forward to it day and night, but I didn't expect that just when he was about to give up, the task was actually completed.

He opened the system page, clicked submit, and then saw that the task of becoming a full-time employee was really completed.

At the same time, a task prompt pops up in front of me again.

[Mission: Zhang Jieru's wish.]

Description: Guo Baichun is suffering from illness and suffering, and she hopes that there is a medicine that can relieve his pain.

Requirements: Biologic analgesics can be produced within 48 hours and Guo Bochun's pain will be relieved.

Rewards: 500 subject experience, 500 points, 1 chance to open the box (Black Iron)]

Before Zhou Wen could take a closer look, the phone in his pocket rang, and it was still Wu Yan calling.

Zhou Wen walked outside the ward to connect.

Wu Yan said happily: "Tell you one thing, your establishment has come down." ”

Although Zhou Wen already knew, he was still very happy in his heart, "I'm so happy to hear the voice of the senior sister, your establishment should also come down, right?"

Wu Yan participated in the hospital's open recruitment at the end of last year, and wanted to change from a contract worker to a career editor, and the results at that time were quite ideal, but there was no notice or publicity.

Wu Yan said "um", couldn't hold back her excitement and said: "I want to thank you this time! According to the boss, Lin Huaidong, head of the expert group of the Provincial Center for Disease Control and Prevention, praised you by name and the professional level of our hospital in front of the leaders of our municipal health bureau at the special meeting on epidemic prevention held yesterday, and asked the whole province to learn from our hospital!"

Zhou Wen said excitedly: ", is it really fake?"

Then the boss pushed the boat and submitted my recruitment results and your employment information again, but I didn't expect it to be approved directly today. ”

Wu Yan was so happy.

This time it was stained with Zhou Wen's light, and the leaders above were happy and gave her a big stroke of the pen, such an opportunity is a once-in-a-lifetime opportunity.

According to the current situation, people like Jiang Hexuan, Wei Zhaogong, Dong Wenying, and Xu Jiajia may be extremely difficult if they want to change their establishment in the future.

The two chatted for a while, and Wu Yan said that she wanted to invite guests to dinner.

When Zhou Wen heard this, he hurriedly said: "Forget it, my scalp is numb when I hear about eating now, let's talk about it later." And I think that we should not make a noise about this matter, we should take into account the feelings of Xu Jiajia and Wei Zhaogong, what do you say?"

"Well, you're right. It's me who got carried away~"

The two of them chatted for a while before hanging up.

Zhou Wen put away his mobile phone and turned his head to look at the ward.

The old lady grabbed her son's hand and muttered something to him, as if she were telling him about his childhood.

No matter how old a son is, in the eyes of his mother, he will always be a child.

Zhou Wen's surging mood was poured cold water on his head by the tear-jerking scene in front of him.

He took another deep look at the mother and son in the ward, and then turned to leave the inpatient unit.

……

Zhou Wen first went to a big pharmacy, spent 20 yuan, bought all the medicinal materials that needed to be used, and then went back to the reagent preparation room of the testing center and began to prepare the reagents that needed to be used.

For example, EDTA, NaCl, SDS, glucose, diethyl dithiocarbonate, PVP, mercaptoethanol, RnaseA mother liquor, chloroform, pentanol, ethanol solution, NaAc, etc., a total of more than 20 kinds.

Each extraction buffer and reagent has a different ratio and has strict requirements.

Fortunately, Zhou Wen has learned reagent equipment during this time, otherwise the reagent equipment alone will stump him.

After two hours, all the reagents needed were finally prepared.

After that, he returned to the general laboratory on the sixth floor.

Wu Yan has already left, and there is no one in the comprehensive laboratory.

Zhou Wen opened the system and looked at it, and when he was preparing the reagent, the task had already triggered the condition and started automatically.

He then began to make biological painkillers.

The first is to extract the DNA of the herbs.

Add extraction buffer to a 50 ml centrifuge tube and pre-warm in a 70 °C water bath;

Cut the purchased 10g of salvia leaves into a mortar, then add liquid nitrogen and grind it into powder, immediately pour it into a preheated centrifuge tube, shake it vigorously, and keep it warm in a 70°C water bath for 30 minutes.

After that, chloroform/pentanol/ethanol solution was added, mixed upside down, and allowed to stand at room temperature for 10 minutes to stratify the aqueous and organic phases......

The upgrade of biochemistry has given Zhou Wen a deeper understanding of the reaction of organic chemistry, and he is very handy in doing experiments.

Now DNA extraction is a piece of cake for him, and there is no such thing as a failure.

The only problem is that the first time I do plant DNA extraction, I will be a little rusty, and the speed will be a little slower.

Three hours later, a high concentration of salvia miltiorrhiza DNA was extracted.

And that's just the beginning.

Next, the "water decay coat" is extracted.

The same step, the difference is that with the first experience, the second time is more handy and faster. It only took two and a half hours.

After the extraction of the water decay clothes was completed, he was just about to continue the extraction, who knew that his stomach "growled".

Looking at the time again, it was already half past eight in the evening, no wonder.

But Zhou Wen didn't want to go to dinner, because there were still 5 strains of DNA that needed to be extracted.

I still have to do DNA amplification when I go back, so I don't have enough time.

Finally, he retrieved an all-natural, unpolluted apple from the system's inventory.

He thought of the poisonous oath he had made last time, and said to himself: "This is the last time, and whoever eats it in the future will not be human." ”

After hesitating for three seconds, he lifted the apple and took two "clicks" and swallowed it before the taste was transmitted to his brain......